CN220923652U - Rotary wheel type core-out pen with range-increasing mechanism - Google Patents

Abstract

The utility model discloses a rotary wheel type core-discharging pen with a range-increasing mechanism, which comprises a pen holder, a rotary wheel, a push rod, a refill supporting seat and an elastic reset member, wherein the rotary wheel is rotatably arranged at the rear end of the pen holder, the push rod is movably arranged at the inner side of the pen holder and is in abutting transmission fit with the rotary wheel, the range-increasing mechanism is arranged between the push rod and the refill supporting seat, the range-increasing mechanism comprises a linkage sleeve and an abutting block, the abutting block comprises two abutting matching surfaces which are in abutting limiting fit with the refill supporting seat, the two abutting matching surfaces are in different radial distances relative to the rotation axis of the abutting block, the abutting block and the linkage sleeve form linkage fit capable of driving the abutting block to deflect when the two are in relative back-and-forth movement, and the refill supporting seat and the two abutting matching surfaces form abutting limiting fit through the deflection movement of the abutting block. The rotating wheel type core-out pen with the range-increasing mechanism is simple and compact in structure and convenient to operate.

Description

Rotary wheel type core-out pen with range-increasing mechanism

Technical Field

The utility model relates to a runner type core-out pen with a range-increasing mechanism.

Background

The telescopic refill-out pen in the prior art generally comprises a pen holder, a refill movably arranged on the inner side of the pen holder, a spring arranged between the front end of the refill and the pen holder and used for driving the refill to reset backwards, and a refill driving mechanism arranged between the rear end of the refill and the pen holder and used for driving the refill to move in a telescopic manner.

In the prior art, most pens adopt a push type pen core driving mechanism, namely, a pen core is driven to stretch and retract by pushing a button at the rear end of a pen holder, in addition, other operation modes of pen core driving mechanisms exist, for example, a rotary potential difference positioning device (ZL 00265384.2) of the pen disclosed by China utility model is adopted, the rotary type pen core driving mechanism comprises an axle seat arranged at the rear end of the pen holder and a rotating wheel eccentrically and rotatably connected to the axle seat, a spring is arranged between the pen holder and the pen core, the periphery of the rotating wheel is provided with a flat cutting surface, a driven rod is matched and abutted with the periphery of the rotating wheel, the driven rod is matched and abutted with the rear end of the pen core, the spring can drive the driven rod to be in compression contact with the periphery of the rotating wheel, and the driven rod can be driven to move forwards and backwards by operating the rotating wheel, so that the pen core is indirectly driven to stretch and retract forwards and backwards.

In the above patent, the telescopic movement stroke of the pen core depends on the difference between the axial center of the runner and the radial distance between the two flat surfaces, in order to ensure that the pen core has a sufficient telescopic movement stroke, the runner is generally designed to have a larger size, which easily causes the increase of the overall width of the pen when the runner is built in the pen, and affects the aesthetic property and the holding feel of the pen, so that the runner is generally exposed outside the pen holder and is more abrupt in order not to increase the overall width of the pen.

Disclosure of utility model

The utility model provides the rotary wheel type core-out pen which is simple and compact in structure, convenient to operate and provided with the range-increasing mechanism.

In order to achieve the above purpose, the utility model provides a rotary wheel type refill discharging pen with a range increasing mechanism, which comprises a pen holder, a rotary wheel, a push rod, a refill supporting seat and an elastic reset component, wherein the rotary wheel is rotatably arranged at the rear end of the pen holder, the push rod is movably arranged at the inner side of the pen holder and is in abutting transmission fit with the rotary wheel, the push rod can be pushed to move forwards relative to the pen holder when the rotary wheel is driven to rotate, the refill supporting seat is used for being matched and supported with the rear end of the refill, the elastic reset component is used for driving the refill to move backwards, the range increasing mechanism is arranged between the push rod and the refill supporting seat, the range increasing mechanism comprises a linkage sleeve in movable sleeving fit with the front end of the push rod and the rear end of the refill supporting seat, and an abutting block in rotary connection with the front end of the push rod, the abutting block comprises two abutting matching faces in abutting limiting fit with the refill supporting seat, the two abutting matching faces are in different radial distances relative to the rotary axes of the abutting blocks, and the abutting blocks and the bridging blocks can be driven to deflect when the abutting blocks move forwards relative to each other.

Through in the above-mentioned scheme, can realize the fore-and-aft motion of ejector pin when driving the runner and rotate, and the ejector pin can drive the butt piece of ejector pin front end and take place to deflect when the relative linkage cover fore-and-aft motion of ejector pin for two butt mating surfaces cooperation butt spacing with the butt piece that the refill supporting seat can be switched, and then can increase or reduce the distance between ejector pin and the refill supporting seat, thereby realize the refill and enlarge the motion stroke of core in core emergence and core shrink in-process. The setting of range-extending mechanism can make the size of runner make littleer, makes it when arranging in the pen-holder inboard, can not produce the influence to the holistic width of pen-holder, can not produce abrupt sense when arranging in the pen-holder outside, makes the overall structure of pen compacter, improves the feel and the aesthetic property of holding of pen.

Further, the linkage sleeve comprises a first limiting part in abutting limiting fit with the abutting block, the abutting block can be driven to deflect in one direction through abutting limiting fit of the first limiting part and the abutting block when the ejector rod moves forwards relative to the linkage sleeve, namely, the direction corresponding to the core-out action is achieved, one abutting fit surface is used for driving the abutting block to deflect in the other direction when the ejector rod moves backwards relative to the linkage sleeve in a matched mode with the pen core supporting seat, in order to improve stability during writing, automatic retraction of the pen core is avoided, an anti-rotation mechanism is arranged between the linkage sleeve and the abutting block, and the anti-rotation mechanism is used for limiting rotation of the abutting block when the abutting block deflects to a state that one abutting fit surface is in abutting limiting fit with the pen core supporting seat, in particular, limiting rotation of the abutting block in the other direction, namely, the direction corresponding to the core-shrinkage action. When one of the abutting matching surfaces of the abutting block is in abutting limit fit with the refill supporting seat, the rotation preventing mechanism can limit the rotation of the abutting block in the other direction, and retraction of the refill when the refill is stressed can be avoided.

Further, one of them butt mating surface is the slope setting, and the butt mating surface of this slope setting can improve the effect that the butt piece deflected towards another direction, can make the fore-and-aft motion process of refill supporting seat more smooth and easy when it promotes the cooperation with refill supporting seat.

Further, the anti-rotation mechanism comprises a guide groove arranged on the inner wall of the linkage sleeve and a convex block arranged on the abutting block and matched with the guide groove for guiding movement. The abutting block deflects to a state that one abutting matching surface is in abutting limit fit with the pen core supporting seat, and meanwhile, the protruding blocks and the guide grooves form guide motion fit, so that relative rotation between the abutting block and the linkage sleeve can be limited.

Further, the butt piece all be provided with along its axis of rotation direction's both sides lug, the both sides inner wall of linkage cover all be provided with two lug cooperation guided movement's guide slot, can improve the cooperation effect between butt piece and the linkage cover, reduce rocking, the card of part and be blocked, make the concertina movement of refill more smooth and easy.

Further, the rear end of the pen holder is provided with a containing groove which is matched with the rotating wheel for containing and forming rotary connection, the rear end of the pen holder is provided with an opening communicated with the containing groove, and the rotating wheel is provided with an operation part for operating hands. The rotating wheel can be conveniently driven to rotate through the operating part of the rotating wheel.

Further, the operation part is a rocker connected with the rotating wheel, the rocker is arranged on the outer side of the pen holder, and the rotating wheel can be driven to rotate more conveniently and in a labor-saving mode through the rocker. In other embodiments, the operation portion may be an anti-slip pattern provided on the outer peripheral wall of the wheel.

Further, the runner is provided with two concave parts along its rotation axle center circumference, and two concave parts are in different radial positions relative to the rotation axle center, and the rear end of ejector pin has the tip of embedding location with the concave part cooperation, and the axial both sides of runner are provided with the limiting plate in corresponding concave part department, and this limiting plate cooperates spacingly with the tip of ejector pin, and the setting of limiting plate can improve the cooperation effect of ejector pin and runner, avoids producing the card and is blocked.

The beneficial effects of the utility model are as follows: the stroke of the movement of the refill out of the core and the lock core can be increased through the stroke increasing mechanism at the inner side of the pen holder, which is beneficial to reducing the size of the rotating wheel and improving the holding feeling and the overall aesthetic property of the pen. Compared with a rotating wheel type core-discharging pen in the prior art, the rotating wheel can realize core-discharging and core-shrinking actions only by rotating a small angle, and the operation is more convenient.

Drawings

FIG. 1 is a block diagram of an embodiment of the present utility model;

FIG. 2 is an exploded view of an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of an embodiment of the present utility model;

FIG. 4 is a schematic structural view of a receiving groove according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram showing the cooperation of the runner and the ejector pin according to the embodiment of the present utility model;

FIG. 6 is an exploded view of the ejector pin and abutment block of the embodiment of the present utility model;

FIG. 7 is a block diagram of a linkage sleeve according to an embodiment of the present utility model;

FIG. 8 is a cross-sectional view of a linkage sleeve according to an embodiment of the present utility model;

FIG. 9 is a schematic view of an abutment block in a first deflected state according to an embodiment of the present utility model;

Fig. 10 is a schematic view of an abutment block in a second deflected state according to an embodiment of the utility model.

Detailed Description

The embodiment of the runner type core-out pen with the range-increasing mechanism is shown in fig. 1-10: including pen-holder 1, runner 2, ejector pin 3, refill supporting seat 4, elastic reset member 5, wherein, runner 2 rotates the setting and is located pen-holder 1 rear end and is inboard, ejector pin 3 activity sets up and is connected the transmission cooperation at pen-holder 1 inboard and with runner 2, runner 2 is provided with two concave parts 21 along its rotation axle center circumference, two concave parts 21 are in different radial positions with the rotation axle center relatively, the rear end of ejector pin 3 has the point 31 of embedding with concave part 21 cooperation, support and location, the axial both sides of runner 2 are provided with limiting plate 22 in corresponding concave part 21 department, this limiting plate 22 cooperates spacingly with the point 31 of ejector pin 3, limiting plate 22's setting can improve ejector pin 3 and runner 2's cooperation effect, can keep ejector pin 3 in the position that cooperatees with runner 2, prevent both to produce the dislocation, avoid producing the card and hang.

When the runner 2 rotates, the tip 31 of the ejector rod 3 moves along the peripheral surface of the runner 2, when the tip 31 of the ejector rod is embedded into different concave parts 21 of the runner 2, the tip 31 of the ejector rod is positioned at different axial positions relative to the pen holder 1, namely, positions corresponding to the core-out state and the core-shrinking state of the pen core respectively, the inner walls of the two concave parts 21 are provided with cambered surfaces, the peripheral surfaces between the two concave parts 21 are also in smooth transition through the cambered surfaces, and the tip 31 can be driven to be separated from the concave parts 21 when a slightly large force is applied. The push rod 3 can be pushed to move forwards relative to the pen holder 1 when the driving rotating wheel 2 rotates, the pen core supporting seat 4 is matched with the rear end of the pen core 6 for being spliced or abutted, the pen core supporting seat is used for being matched and supported with the rear end of the pen core 6, and the elastic reset component 5 is arranged between the pen core 6 and the pen holder 1 and used for driving the pen core 6 to reset backwards.

The pen refill supporting seat is characterized in that a range extending mechanism is arranged between the ejector rod 3 and the pen refill supporting seat 4, the range extending mechanism comprises a linkage sleeve 71 which is in movable sleeve joint fit with the front end of the ejector rod 3 and the rear end of the pen refill supporting seat 4, and an abutting block 72 which is rotatably connected with the front end of the ejector rod 3, the abutting block 72 comprises two abutting matching surfaces (72 a and 72 b) which are in abutting limit fit with the pen refill supporting seat 4, the two abutting matching surfaces are located at different radial distances relative to the rotating axle center of the abutting block 72, the two abutting matching surfaces are adjacently arranged along the circumferential direction of the abutting block 72, linkage fit capable of driving the abutting block 72 to deflect when the abutting block 72 and the linkage sleeve 71 move back and forth relative to each other is formed, and the pen refill supporting seat 4 and the two abutting matching surfaces (72 a and 72 b) form abutting limit fit through the deflection movement of the abutting block 72. The rear end of the pen core supporting seat 4 can be driven to be in pressing contact with the abutting block 72 under the force application effect of the elastic reset member 5, and meanwhile, the rear end tip 31 of the ejector rod 3 can be driven to be in pressing contact with the rotating wheel 2.

Therefore, when the rotating wheel 2 is driven to rotate, the front and back movement of the ejector rod 3 can be realized, and when the ejector rod 3 moves back and forth relative to the linkage sleeve 71, the abutting block 72 at the front end of the ejector rod 3 can be driven to deflect, so that the refill support seat 4 can be matched with two abutting matching surfaces (72 a and 72 b) of the abutting block 72 to be limited in an abutting manner, the distance between the ejector rod 3 and the refill support seat 4 can be further increased or reduced, and the movement stroke of the refill in the process of core ejection and core shrinkage can be further enlarged. The arrangement of the range extending mechanism can reduce the difference of the radial distances between the two concave parts 21 of the rotating wheel 2 relative to the rotating shaft center, so that the size of the rotating wheel 2 can be smaller, the rotating wheel 2 can not influence the whole width of the pen holder 1 when being arranged inside the pen holder 1, the whole structure of the pen is more compact, and the holding feeling and the aesthetic property of the pen are improved.

In other embodiments, the runner 2 may also be located outside the pen holder 1, so that the size of the runner 2 is reduced, and the runner will not generate a sense of abrupt when placed outside the pen holder 1, thereby improving the aesthetic appearance of the pen.

As shown in fig. 7 to 10, the linkage sleeve 71 includes a first limiting portion 711 that is in abutting and limiting engagement with the abutting block 72, in an initial state, under the action of the elastic reset member 5, the abutting and matching surface 72b of the abutting block 72 and the pen core supporting seat 4 form abutting and limiting engagement, the pen core 6 corresponds to a state of shrinking the pen core (as shown in fig. 9), and when the ejector rod 3 moves forward relative to the linkage sleeve 71, the abutting and limiting engagement of the first limiting portion 711 and the abutting block 72 can drive the abutting block 72 to deflect in one direction, namely, corresponds to a direction of the core-out action, and enables the abutting and matching surface 72a of the abutting block 72 and the pen core supporting seat 4 to form abutting and limiting engagement, at this time, the pen core 6 corresponds to a state of core-out (as shown in fig. 10).

The abutting surface 72a is used for being matched with the pen core supporting seat 4 to drive the abutting block 72 to deflect towards the other direction when the ejector rod 3 moves backwards relative to the linkage sleeve 71, and under the action of the elastic reset member 5 and the action of writing pressure, the pen core supporting seat 4 has a backward movement trend, and the movement trend can promote the abutting block 72 to deflect towards the other direction under the influence of the acting force direction and the axial position of the abutting block 72, so that the pen core can possibly retract automatically. In order to avoid this, the stability of writing is improved, and the automatic retraction of the pen core is avoided, an anti-rotation mechanism is provided between the linkage sleeve 71 and the abutting block 72, and the anti-rotation mechanism is used for limiting the rotation of the abutting block 72 when the abutting block 72 deflects to a state in which the abutting mating surface 72a is in abutting limit fit with the pen core supporting seat 4 (i.e. the state shown in fig. 10), in particular limiting the rotation of the abutting block 72 in the other direction, i.e. the direction corresponding to the action of retracting the pen core, so that the retraction of the pen core when writing is stressed can be avoided, and the stability of writing is improved.

The abutment mating surface 72a is inclined, and may be a flat inclined surface or an arc surface, and the abutment mating surface 72a of the inclined arrangement can firstly improve the effect of deflecting the abutment block 72 toward the other direction, and in addition, when the abutment block is in pushing fit with the refill supporting seat 4, the forward and backward movement process of the refill supporting seat 4 can be smoother.

The anti-rotation mechanism comprises guide grooves 712 correspondingly arranged on the inner walls of the two sides of the linkage sleeve 71, and protruding blocks 721 arranged on the abutting block 72 and matched with the guide grooves 712 for guiding movement, wherein the protruding blocks 721 are arranged on the two sides of the abutting block 72. The rear end of the guide slot 712 is provided with an opening 7121 into which the projection 721 is inserted or removed, the abutment block 72 moves forward relative to the linkage sleeve 71 and deflects to enable the abutment mating surface 72a to be in abutment limit fit with the pen core supporting seat 4, and the projection 721 is inserted into the guide slot 712 and forms guide motion fit with the guide slot 712, in this embodiment, the guide slot 712 is a guide slot 712 which is vertically arranged, and relative rotation between the abutment block 72 and the linkage sleeve 71 can be limited through limit fit between the projection 721 and the side wall of the guide slot 712. When the abutment block 72 moves rearward relative to the interlocking sleeve 71, the projection 721 of the abutment block 72 is released from the opening 7121 at the rear end of the guide groove 712, and the restriction between the abutment block 72 and the interlocking sleeve 71 is released, so that the abutment block 72 can be smoothly deflected in the other direction by the pushing of the cartridge supporting seat 4.

By the engagement between the two pairs of guide grooves 712 and the protruding blocks 721, the force-applying engagement effect between the abutting block 72 and the interlocking sleeve 71 can be improved, and the wobbling and the jamming of the parts can be reduced, so that the telescopic movement of the pen core can be smoother.

As shown in fig. 2-4, the rear end of the pen holder 1 includes a rear end cover 10, the rear end cover 10 is provided with a receiving groove 101 which is configured to be in cooperation with the rotating wheel 2 and is in rotation connection, the inner side of the receiving groove 101 is provided with a vertical groove 102 which is in cooperation with the connecting shafts 24 on two sides of the rotating wheel 2, the lower end of the vertical groove 102 is provided with an inlet, the connecting shafts 24 can be upwards installed into the vertical groove 102 along the inlet on the lower end, the installation of the rotating wheel 2 is facilitated, the connecting shafts 24 of the rotating wheel 2 are abutted to the upper end of the vertical groove 102 under the action of an elastic reset member, the connecting shafts 24 and the vertical groove 102 are in cooperation to realize rotation connection of the rotating wheel 2 relative to the pen holder 1, and the rotating wheel 2 is provided with an operation part 23 for hand operation. The operation part 23 of the rotating wheel can conveniently drive the rotating wheel to rotate. The operation part 23 is a rocker connected with the rotating wheel 2, and the rocker is arranged at the outer side of the pen holder 1, so that the rotating wheel 2 can be driven to rotate more conveniently and more labor-saving through the rocker, and particularly, the rotating wheel 2 can be operated by one hand conveniently to rotate. In other embodiments, the operation portion 23 may be an anti-slip pattern provided on the outer peripheral wall of the wheel.

Compared with a rotating wheel type core-extracting pen in the prior art, the rotating wheel can realize core-extracting and core-shrinking operation only by rotating a small angle, and the operation is more convenient.

The above embodiment is only one of the preferred embodiments of the present utility model, and common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are included in the scope of the present utility model.

Claims (8)

1. The utility model provides a runner type core-out pen with increase journey mechanism, includes pen-holder, runner, ejector pin, refill supporting seat, elasticity reset member, and wherein, the runner rotates the setting at the pen-holder rear end, and the ejector pin activity sets up in the pen-holder inboard and with runner butt transmission cooperation, and the refill supporting seat is used for supporting with the rear end cooperation of refill, and elasticity reset member is used for driving the refill and resets motion backward, its characterized in that: the pen refill supporting seat comprises a pen refill supporting seat, a push rod and a stroke increasing mechanism, wherein the pen refill supporting seat is arranged on the pen refill supporting seat, the stroke increasing mechanism comprises a linkage sleeve which is movably sleeved and matched with the front end of the push rod and the rear end of the pen refill supporting seat, and an abutting block which is rotatably connected with the front end of the push rod, the abutting block comprises two abutting matching surfaces which are used for abutting and limiting and matching with the pen refill supporting seat, the rotating axes of the two abutting matching surfaces are at different radial distances relative to the abutting block, and the abutting block and the linkage sleeve form linkage fit which can drive the abutting block to deflect when the two are in relative back-and-forth motion, and the pen refill supporting seat and the two abutting matching surfaces form abutting and limiting fit through the deflection motion of the abutting block.

2. The wheeled core-out pen with range-extending mechanism of claim 1, wherein: the linkage sleeve comprises a first limiting part in abutting limiting fit with the abutting block, the first limiting part is used for driving the abutting block to deflect towards one direction when the ejector rod moves forwards relative to the linkage sleeve, one abutting fit surface is used for driving the abutting block to deflect towards the other direction when the ejector rod moves backwards relative to the linkage sleeve in a matched mode with the pen core supporting seat, an anti-rotation mechanism is arranged between the linkage sleeve and the abutting block and used for limiting rotation of the abutting block when the abutting block deflects to a state that one abutting fit surface is in abutting limiting fit with the pen core supporting seat.

3. The wheeled core-out pen with range-extending mechanism of claim 2, wherein: one of the abutment mating surfaces is inclined for urging the abutment block to deflect in the other direction as the ejector rod moves rearward relative to the linkage sleeve.

4. The wheeled core-out pen with range-extending mechanism of claim 2, wherein: the anti-rotation mechanism comprises a guide groove arranged on the inner wall of the linkage sleeve and a convex block arranged on the abutting block and matched with the guide groove for guiding movement.

5. The wheeled core-out pen with range-extending mechanism of claim 4, wherein: the two sides of the abutting block along the direction of the rotation axis of the abutting block are respectively provided with the convex blocks, and the inner walls of the two sides of the linkage sleeve are respectively provided with a guide groove which is matched with the two convex blocks to guide movement.

6. The wheeled core-out pen with range-extending mechanism of claim 1, wherein: the rear end of the penholder is provided with a containing groove which is matched with the rotating wheel for containing and forming rotary connection, the rear end of the penholder is provided with an opening communicated with the containing groove, and the rotating wheel is provided with an operation part for operating hands.

7. The wheeled core-out pen with range-extending mechanism of claim 6, wherein: the operating part is a rocker connected with the rotating wheel, and the rocker is arranged on the outer side of the pen holder.

8. The wheeled core-out pen with range-extending mechanism of claim 1, wherein: the rotating wheel is circumferentially provided with two concave parts along the rotating axis, the two concave parts are positioned at different radial positions relative to the rotating axis, the rear end of the ejector rod is provided with a tip part which is embedded and positioned in the concave parts in a matched manner, the two axial sides of the rotating wheel are provided with limiting plates at the corresponding concave parts, and the limiting plates are in matched limiting with the tip part of the ejector rod.